Have you ever received an e-mail offering something you really want? And have you ever meant to buy it later but simply forgot? I know I have.
Here’s the thing though. Many business owners don’t want to be seen to be a pest so they only send one sales message and then presume people who didn’t buy didn’t want to. This isn’t the case at all. People who don’t want to buy won’t be on your list. You should be sending roughly one sales message to every three or four informational messages. People will soon unsubscribe if they don’t like what you are doing.
Here is an example from one of my sites. Every time I hope the cart for a few days and announce it only a few join. By the second and third message many more join.